CONVEYANCE DEVICE

To provide a conveyance device which can reduce outputs of a driving source required for an operation of a link mechanism.SOLUTION: A rotation direction of a drive shaft 21 in which the drive shaft 21 rotates so that a first connection section 422 and a second connection section 452 approach a virtual plane 91 is defined as an approaching rotation direction. A rotation direction of the drive shaft 21 in which the drive shaft 21 rotates so that the first connection section 422 and the second connection section 452 are away from the virtual plane 91 is defined as a separating rotation direction. At the time, a link mechanism 4 is configured so that torque T1 in the approaching rotation direction applied to the drive shaft 21 by gravity is larger than torque T2 in the separating rotation direction applied to the drive shaft 21 by gravity in a state in which a first separation distance D1 and a second separation distance D2 are not 0.SELECTED DRAWING: Figure 1 【課題】リンク機構の作動に必要な駆動源の出力を低減させることができる搬送装置を提供する。【解決手段】本発明において、第１連結部４２２及び第２連結部４５２が仮想平面９１に近づくように駆動軸２１が回転する駆動軸２１の回転方向を接近回転方向とし、第１連結部４２２及び第２連結部４５２が仮想平面９１から遠ざかるように駆動軸２１が回転する駆動軸２１の回転方向を離間回転方向とすると、リンク機構４は、第１離間距離Ｄ１及び第２離間距離Ｄ２が０でない状態において、重力により駆動軸２１に加わる接近回転方向へのトルクＴ１が、重力により駆動軸２１に加わる離間回転方向へのトルクＴ２よりも大きくなるように構成されている。【選択図】図１